Finding the Fourth Proportional to 19,207,939.32, 28,811,958.18 and 7,848,387.90
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Solution
The fourth proportional to 19,207,939.32, 28,811,958.18 and 7,848,387.90 is: 11,772,601.95
Step by Step Solution
- Step 1: Write the proportion equation
19,207,939.32 : 28,811,958.18 = 7,848,387.90 : x - Step 2: Convert to fraction form
19,207,939.32/28,811,958.18 = 7,848,387.90/x - Step 3: Cross multiply
19,207,939.32x = 28,811,958.18 × 7,848,387.90 - Step 4: Simplify right side
19,207,939.32x = 226,127,423,955,218.03 - Step 5: Solve for x
x = 226,127,423,955,218.03/19,207,939.32 - Step 6: Final answer
x = 11,772,601.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.